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Genetics and Punnett Squares
flashcards about genetics and Punnett squares
23 cards·by per5bio
who is Gregor Mendel?
an Austrian monk; father of genetics
what is self-fertilization?
male and female gametes of same flower combine
what is genetics?
science of heredity or inherited traits
what is true-breeding?
organisms that produce same traits generation after generation
what is cross-pollination?
crossing gametes of different true-breeding organisms (pea plants)
what is P-generation?
parent generation
what is F1 generation?
offspring of the P-cross
what is F2 generation?
the offspring of F1 cross
what is an allele?
different form of 1 gene
what is dominant?
the trait that appears
what is recessive?
the trait that is masked
what is homozygous?
2 of the same alleles for 1 trait
what is heterozygous?
2 different alleles for 1 trait
what is a genotype?
the pairs of alleles; genes
what is a phenotype?
expression of the alleles
what is the law of segregation?
alleles seperate during meiosis
what are hybrids?
heterozygous organism
what is a genotypic ratio?
ratio of different genotypes
what is a phenotypic ratio?
ratio of different phenotypes
what is the law of independent assortment?
alleles distribute into random gametes
what is horizontal side?
write the male gametes
what is vertical side?
write the female gametes
what are squares?
combinations of gametes